Does potassium work?

Overall Effectiveness Rating for potassium

The overall effectiveness rating for potassium is 1.5 out of 3. This rating means there is some evidence that using potassium may lead to positive results. This rating also means that some evidence does not back up all claims. Below you can find individual ratings for specific claims.

Overall Confidence Rating for potassium

There are 2 studies in the database on potassium; the confidence rating is 20. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this rating is for potassium as a whole. There are also individual ratings for the claims below.

Products Containing potassium

Products Containing potassium
Amplify Pump
Swole Max
Amino Workout Powder
Full list of all 78 products containing potassium.

Individual Claims

The overall ratings above do no necessarily reflect each claim about potassium. Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

Performance Claims Effectiveness Rating Confidence Rating
improve sports performance
improve sprint performance


Title of Study
Chronic Ingestion of Sodium and Potassium Bicarbonate, with Potassium, Magnesium and Calcium Citrate Improves Anaerobic Performance in Elite Soccer Players
Discrete physiological effects of beetroot juice and potassium nitrate supplementation following 4-wk sprint interval training